William j



w. J. FR ISBIE SPARK PRODUCINGMECHANISM: APPLICATION HLED' FEB. 8, I922.

1 429 42 PatentedSept. 19, 1922.

Patented Sept. 19, 1922.

WILLIAM J. FBI$BIE- Qe ee-ee tumo s Assam T0 inseam M NU A C srann-rnonnome MECHANISM.

- Applicationiiled February 8, 19 22. Serial'No. 535,023;

To all whom it may 00mm.-

Be it known that I,

of Chicago, in the county of Cook'and State specification. v

My invention-relates to spark producing mechanism for producing-sparks forignitinggas issuing from an-orifice and isfparticularly adaptable and useful in connection I,

. rounded by the bearing flange 23 extending from the hub 24 of the lever 25, andthis with miners acetylene lamps.

The inventionv relates to that class of spark producing mechanismin which is provided afriction wheel and pyrophoric material "tor cooperating therewith, together with an adjusting lever and a spring which returns the lever when released, an important object of my invention beingtoprovide improved ratchet mechanism compactly and etticiently arranged with .the lever, wheel and other partsto lock the wheel against rotation when the lever is positively swung but to connect the wheel with the lever to rotate with the lever when it is released, to therebycause the wheel to cooperate with the pyrophoric material to produce sparks tor igniting the gas issuing from the burner with whichthe' mechanism is associated. 3

My improved construction and arrange- .nular row of ratchet'teeth 33' with which ment is clearly illustrated on the accompanying drawing in which 1 'Fig. 1 is a front elevational miners cap lamp, t Fig. 2 is an enla-rgedside elevational view of the'spark producing attachment with one of the frame walls partly broken away and p H i wheel with the pyrophoricmaterial when the the reflector in section,

Fig. 3 is an enlarged sect1onalviewon;

plane 3-3 Fig.2,-

Fig. 4 is an outside elevational view 01' a water container A, a carbide cup B, a gas tip C, a reflector D concentric with the gas tip, and lever mechanism E for controlling the water supply valve ofthe lamp. The spark producing attachment comprises a lVIL IAM FRISBIE, a citizen of the United States, and-a resident friction wheel.

aeripheral flange 27 which with the inner View of a base; having an exterior-lythreaded barrel 11 extending therefrom which has-the longitudinal bore 12 for receiving a compression spring 13' andv a block 01?;.p'yrophoric ma-, terial 14:, a cap .15 receiving. theend of the TUBING QMPANY r H AG 'LL QI QQ Q A'TIQN 9. eleitele f a f barrel... Extending fromlthe opposite sides of-the base are the parallel opposedwalls 16'and17 having the openings 18 and 19 re-' spectively for receiving the tubular pivot pin- 2,0.' Surrounding thepin between the walls is bushing 21,'and encircling-this bushing is the coiled spring 22. Y Thespringissur flange is .surroundedby the annular friction wheel or disc 26, the pyrophoric material being held by the spring 13 against the The hub 24; of the lever 25hhas also the bearing flange 23- provides the annular. pocket 28 for the spring; pawl member 29.-

This pawl member is, as'shown, inthe form of a flat three-quarters *circular spring whose one end 30 is deflected atright angles to extend-through thehole 31 provided in the hub 24 of the lever, the pawl being then .anchoredat this end. The other end 3201? the pawl is turnedoutward slightly to form a. pawl point or tooth. The friction wheel" on its side next to the lever hub has the an wheel is rotated The lever 25' has the side wall 36 pro vided with the longitudinal slot 37 which communicates with the lever opening 38 and the-end 39 of the spring 22 extends alongthisslot andhooks' around the edge of the wall 25 asv clearly shown in Fig.2.

The lever hub engages with the wall16 on 'thebase and between the Wall 17-and the friction wheel isinserted a washer 40, I which has-the flange e0" extendingthere from into the wheel opening,; 3]4c ,tnform a continuation of'the'hearing flange 230 1 th lever. The washer has'the slot 4:1 there through through which extends the-end 42 of t sprin 2 thi end hook ng ar u the wall 17 as clearly shown in 2. The slot 41 permits the spring end to operate freely between the wheel and the wall 16 when the lever is swung.

The sparking attachment is secured on the reflector D of the lamp with the friction Wheel in a diametral plane including the burner tip, the reflector having a hole 65 through which the barrel ll-extends with the base 10 against the inside of the reflector, the nutd3 threading on the barrel 11 and engaging againstthe outside of the reflector. The spring 22 is arranged to resist inward swing of the lever toward the burner tip and to normally hold the lever against the edge of-the reflector as clearly shown in Fig. 2. The frictional engagement of the pyrophoric material with the wheel caused by the spring 13 will resist rotation of the overcoming'the friction of the pyrophoricmaterial against the wheel. The produced sparks will then ignite the gas issuing from the burner tip and the lamp will be lighted.

To insure ignition of the lamp in a draught, or when the pressure in the carbide cup is low, I provide another wall 44 on the lever which with the wall 36 forms a channel 45 which, when the lever is swung in, will bridge between the gas'tip and the friction wheel to receive and conduct gas towards the wheel so that when the lever is released the sparks will ignite the conducted gas and the flame will be transmitted to the tip to light the lamp. The end of the lever is preferably expanded to form a cap to which, when the lever is swung inwardly, will be directly in front of the tip outlet to receive the gas and guide it through the channel l5. When the cap is brought close to the tip it will also more or less restrict and retard the outflow of gas, so that should the pressure in the lamp be low the outflow can be retarded for a moment until the pressure picks up and then when the lever is released sutlicient gas will be discharged to insure ignition of the lamp. The rounded back of the cap 16 will also permit the lever to be readily engaged by the finger and swung to inner position.

My improved arrangement is very practical and efficient. The various parts are all compactly and concentrically nested together between the walls 16 and '17 of the supporting frame and yet have suflicient clearance to function properly. The ratchet mechanism, particularly, is very compact shown and described as modifications can be made which will still come within the scope of the invention.

1 claim as follows:

1. In spark producing mechanism of the class described, the combination of a frame, a pivot pin on said frame, a coiled spring surrounding said pin, a friction wheel surrounding said spring and concentric therewith, a lever concentric with saidspring and' adjacent to said wheel, said spring being connected at one end to said lever and. its other end to said frame, ratchet teeth on one side of said wheel, a ratchet pawl on said lever for cooperating with said teeth, pyrophoric material and means for holding it against said wheel, said pawl passing along said wheel without rotating it when the lever is swung in one direction but causing rotation of said wheel when the lever is returned in the opposite direction by said spring, rotation of said wheel relative to said pyrophoric material causing the production of gas igniting sparks.

2. In sparking mechanism of the class de scribed, the combination of a supporting frame having opposed walls, a pivot pin extending between said walls, a lever, an inner flange on said lever receiving said pin, a friction wheel receiving and rotatable on said flange, said wheel having ratchet teeth on its side adjacent to said lever, a flat arcuate pawl spring between said wheel. and lever, said spring being secured at one end to said lever and having its other end deflected to form a pawl point for engaging with said ratchet teeth, a coiled spring surrounding said pin and located within said flange, one end of said spring being anchored to said lever and the other end being anchored to said frame, pyrophoric material, and means for frictionally engaging said material with said wheel, said spring tending to resist swing of said lever and to return it after swing thereof, said pawl spring traveling idly over said wheel ratchet teeth when the lever is swung but cooperating with the teeth when the lever is returned by its spring to rotate said wheel against the pyrophoric material to produce ignition sparks.

In spark producing mechanism of the class described the combination of a frame, a pivot pin on said frame, a lever hub and a; lever extending therefrom, said hub having an inner bearing flange concentric with a said pin and having an outer peripheral flange, said flange formin an annular pocket,

an annular spark Wheel receiving said inner flange, an annular row of ratchet teeth. on said wheel projecting into said pocket, a flat arcuate pawl spring in said pocket anchored at one end to the hub and having its other end forming a pawl point for cooperating. with said ratchet teeth, a coiled spring surrounding said pin and located within said innerhub flange, one end of said spring'being anchored to said lever and the other end being anchored to said frame, pyropho-ric material, and means for frictionally engaging said material with said wheel, said coiled spring tending to resist swing of said lever and to return it after a swing, said pawl spring engaging idly over the ratchet teeth when the lever is positively swung but cooperating with said teeth to rotate said wheel when the lever is returned by its spring, rotation of said wheel causing cooperation thereof with said pyrophoricmaterial to produce sparks d. In spark producing mechanism of the class described, the combination of a support having opposed walls, a pivot pin extending between said walls, a lever having a hub receiving said pin to rotate thereon, a pawl spring on said hub anchored at one end thereto, the other end of said pawl spring being deflected to form a pawl point, a friction wheel receiving and rotatable on said hub, the face of said wheel adjacent to said hub having an annular row of ratchet teeth thereon with which the pawl spring may cooperate, a bushing engaging in the opposite end of said wheel to form a continuation of said hub, a coiled spring surrounding said pin within said hub and bushino. one end of said spring being anchored to said lever and the other end being anchored to said frame, pyrophoric material, and means for frictionally engaging said material with said wheel, said spring tending to resist swing of said. lever and to return it after swing thereof, said pawl spring traveling idly over said ratchet teeth when the lever is swung but cooperating with said teeth when the lever is returned by its spring whereby to cause said wheel to engage with said pyrophoric material to produce sparks.

5. In spark producing mechanism of the class described, the combination of a supporting frame having opposed walls, a pivot pin extending between said walls, a lever having a hub. receiving said pin between said walls, there being an inner bearing flange on said hub surrounding said pin, anouter flange on said hub, said flanges forming anannular pocket on the inner face of said hub, an arcuate pawl spring in said pocket having oneend anchored to said hub and its other end forming a pawl point, a friction wheel rotatable on and surrounding said hub and having ratchet teeth on its face with which the pawl point cooperates, a bushing engaging in the opposite .side of said wheel to form a continuation of said inner flange on the hub, a coiled spring surrounding said pin and located withinsaid inner flange and bus-hing, one end of said spring being anchored to said lever and the other end being anchored to said frame, said bushing having- *a slot' through which said other end of the spring extends, said spring tendingto resistswing of said lever and 'to return it after swing thereof, pyrop-horic material, and means for frictionally engaging said material with said wheel, said pawl tooth traveling idly over said ratchet teeth when the lever is posi tively swung but cooperating with said teeth to rotate said wheel when it is .returnedby its spring, rotation of said wheel causing cooperation thereof with said pyro-phoric material to produce sparks.

6. In spark producing mechanism of the class described, the combination of a frame having opposed walls, a pivot pin extending between said walls, a lever formed of sheet metal and having a. hub receiving said pin, an arcuate pawl spring on the inner face of said hub anchored at one end thereto and atits other end presentinga pawl point, a friction wheel surrounding said pin and having ratchet teeth on its one face for cooperating with said pawl point, a coiled. spring surrounding said pin and located within the hub and wheel and having one end anchored tosaid lever and its other. end anchored to said frame, pyrophoric material, and means for frictionally engaging said material with-said wheel, said spring tending to resist swing of said lever and to return it after swing thereof, said pawlpoint traveling idly over said wheel when the lever'is swung and cooperating with said ratchet teeth to rotate the wheel when the lever is returned by its spring, rotationof the wheel causing the producing of gas igniting sparks. a

7. In spark producing'mechanism of the class described, a combination of-a supportmg. frame having opposed Walls, a pivot pin extending between said walls, a lever I having a hub flange receiving said pin, a friction wheel journaled on saidhub and. flange, pawl and ratchet mechanism be; tween said wheel and hub,'a spring anchored to said lever and to said frame for resisting swing of said lever and forreturnin-git after swing thereof, pyrophorio material, and means forfrictionally engaging said material with said wheel, said pawl and ratchet mechanism operating idly. when "the lever'is swung but cooperatingto cause rotation of said wheel when the lever is re turned by its spring, rotationof said wheel causing cooperation thereof with said pyrophoric material to produce sparks.

8. In spark producing mechanism of the class described, the combination of a supporting frame having opposed walls, a pivot pin extending between said walls, a bushing extending between said walls and surrounding said pin, a lever having a bearing flange surrounding said bushing, a friction wheel ournaled on said bearing flange, pawl and ratchet mechanism between said wheel and lever, pyrophoric material, means for frictionally engaging said material, with said wheel, and a spring anchored to said lever and to said frame for resistin swing of said lever and for returning it after swing thereof, said pawl and ratchet mecha nism being idle when the lever is swung but operating to rotate said wheel when said lever is returned by its spring, rotation of said wheel relative to said pyrophoric material causing the production of gas igniting sparks.

9. In spark producing mechanism of the class described, the combinatlon of a supporting frame having opposed walls, a pivot pin extending between said walls, a bushing surrounding said pin between said walls, a lever having a hub surrounding said bushing, a friction wheel journaled on said hub to rotate thereon, pawl and ratchet mechanism betweensaid wheel and lever, a spring inserted on said bushingv and located within said hub, said spring being anchored at one end of said lever and at its other end to said frame to resist swing of said lever and to return it after a swing thereof, pyrophoric material, and means for frictionally engaging said material with said wheel, said pawl and ratchet mechanism being idle when said lever is swung but operat: ing to rotate said wheel when said lever is returned by its spring, rotation of said wheel relative to said pyrophoric material causing the production of sparks,

10. In spark producing mechanism of the class described, the combination of a supporting frame having opposed walls, a pivot pin extending between said walls, a bushing on said pivot pin between said walls, a lever formed of sheet metal and having a bearing flange surrounding said bushing, a coiled spring within said bearing flange and surrounding said bushing, said spring being anchored at one end to said lever and its other end to said frame to resist swing of said lever and to return it after a swinging movement, an annular friction wheel journaled on said bearing flange, an arcuate pawl spring on said lever having its one end anchored to said lever and its other end forming a pawl point,,teeth on the adja cent face of said friction wheel with which said pawl pointmay cooperate, pyrophoric material, and means for frictionally engaging said material with said wheel, said pawl point traveling idly over said ratchet teeth when the lever is swung but cooperating with said teeth to rotate said wheel when the lever is returned by its spring, the ro tation of said wheel against said material causing sparks.

11. In spark producing mechanism of the class described, the combination of a supporting frame having opposed walls, a pivot pin extending between said walls, an annular sheet metal disc having an inner bearing flange for receiving said pin, an arcuate pawl spring on said flange anchored at one end to said disc and having its other end deflected to form a pawl point, a friction wheel journaled on said flange and hav ing ratchet teeth on its adjacent face with which the pawl spring may cooperate, an actuating lever extending from said disc, a coiled spring surrounding said pin and located within said bearing flange, one end of said spring being anchored to said lever and the other end being anchored to said frame to resist swing of said lever and to return it after a swinging operation, pyrophoric material, and means for frictionally engaging said material with said wheel, said pawl and ratchet teeth being idle when said lever is swung but cooperating to cause rotation of said wheel when said lever is returned by its spring, cooperation of said wheel with said pyrophoric material causing the production of sparks,

12. In spark producing mechanism of the class described, the combination of a supporting frame having opposed walls, a pivot pin extending between said walls, a lever receiving said pin, a ratchet wheel receiving said pin, pawl and ratchet mechanism between said wheel and lever, a coiled spring around said pin and located within said lever and wheel, one end of said spring being anchored to said lever and the other end being anchored to said frame whereby said spring will resist swing of said lever and return it after a swinging operation,

pyrophoric material, and means for frictionally engaging-said material with said wheel, said pawl and ratchet mechanism permitting said lever to be swung independently of said wheel but cooperating to cause rotation of said wheel when said lever is returned by its spring, rotation of said whee] relative to said pyrophoric material caus-' ing sparks. I

In witness whereof, I hereunto subscribe my name this 3rd day of February A. D., 1922.

WILLIAM J. FRISBIE, 

